— Two crowns — Same mass, different density — Vertical slider — Slider works — Slider controls crowns — Slider direction correct — Full slider range — Fall animation ✓ Water displacement ✓ Rising water level — Splash effects — Physics correct — Live mass value ✓ Live volume value — Live density value ✓ Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps ✓ Light bg / dark text ✓ Self-contained HTML
Implements a generic Archimedes buoyancy demo with a box and water-level animation, but entirely misses the core prompt: no crowns, no gold/gilded distinction, no vertical slider, no mass/density readouts, and no Heureka moment.
Implements a generic Archimedes buoyancy demo with a box and water-level animation, but entirely misses the core prompt: no crowns, no gold/gilded distinction, no vertical slider, no mass/density readouts, and no Heureka moment.